RE: OS1.40RX Tuned Pipe - $240.00!!!!
Mike,
the 8 stands for the 0.75inch dia inlet...3/4"
the 9 stands for the 7/8" inlet
Also the diameters of the fat part of the pipes are different.
Check Centrals website for the dims....
Yes the 7/8" inlet will be less critical as it is more volume...The guys that have the 2 strokes running well know that the volume is important.
TN